The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 18, 2007

Filed:

Aug. 30, 2005
Applicants:

Hideaki Takada, Wako, JP;

Taiichi Otobe, Wako, JP;

Shinsaku Nakayama, Wako, JP;

Inventors:

Hideaki Takada, Wako, JP;

Taiichi Otobe, Wako, JP;

Shinsaku Nakayama, Wako, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B63H 21/22 (2006.01);
U.S. Cl.
CPC ...
Abstract

In an outboard motor steering system, the engine speed is detected as a value indicative of the speed of the boat and a current value for operating a steering hydraulic cylinder is determined to decrease with decreasing engine speed. The current value can therefore be determined in accordance with the steering load to reduce electric power consumption. Moreover, owing to the fact that the drive current is determined as a function of steering load, it is possible to prevent the output of the cylinder from becoming excessive relative to the steering load, thereby ensuring that the steered angle tracks a desired steering angle with good accuracy.


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